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$2,133+ Cheap flights from Dulles Intl (IAD) to Kos (KGS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — KGS
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Dulles Intl to Kos

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Kos (KGS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$2,133
(Emirates)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Kos flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Kos flights.
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From Washington, D.C. Dulles Intl to Kos
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Find flight deals from Dulles Intl to Kos

Best flights from Dulles Intl to Kos
Discover carefully curated flight deals from Dulles Intl to Kos that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

This Emirates deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2611:15 amIAD - KGS
2 stops23h 50mEmirates
Mon 3/301:05 pmKGS - IAD
2 stops26h 35mEmirates
Deal found 10/25$2,133

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Kos that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Kos that are best for you.

Fly from

Dulles Intl

Fly to

Kos

Route

Depart

Return

Price

Washington, D.C.Kos

IAD - KGS

IADKGS

Washington, D.C. Dulles Intl

Thu 3/26

11:15 am-5:05 pm

2 stops23h 50m

Kos

Mon 3/30

1:05 pm-8:40 am

2 stops26h 35m

$2,133

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Kos flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Kos flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Kos flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Kos flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Kos flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Kos

Have a flexible travel schedule? Discover the best time to fly to Kos from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Kos. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kos from Washington, D.C. Dulles Intl?

    Kos (KGS), located 12.8 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Kos. 0 airlines have flights to Kos from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Kos should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Kos?

    Emirates can get you from Washington, D.C. Dulles Intl Airport to Kos in just under 23h 50m. Your travel time can differ by up to . The distance between Washington, D.C. Dulles Intl Airport and Kos is about 5336 mi.

  • Can I find deals for flights from Dulles Intl to Kos that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Kos flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Kos?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Kos.

  • Can I find deals for business class flights from Dulles Intl to Kos?

    Yes. Cheapflights offers flight deals from Dulles Intl to Kos by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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